Pet Climbing Ladder

FIG. 1 is a front, left and top perspective view of a pet climbing ladder, showing my design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a left side elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another front, left and top perspective view of the pet climbing ladder in another state.

The broken lines depict portions of the pet climbing ladder that form no part of the claimed design.